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Tap water quality report

Dallas, NC

EPA monitoring detected 39 contaminants across the 16 water suppliers serving Dallas. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

16
water suppliers
10,211
people served
39
contaminants found
North Carolina rankings Lead in North Carolina PFAS in North Carolina

What was found in Dallas's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
9700 µg/L 97%
of the EPA limit 10000 µg/L
 14/16 SYR4
Nitrate-Nitrite
7000 µg/L 70%
of the EPA limit 10000 µg/L
 8/16 SYR4
Fluoride
2800 µg/L 70%
of the EPA limit 4000 µg/L
 11/16 SYR4
Copper
1150 µg/L 88%
of the EPA limit 1300 µg/L
 14/16 SYR4
TTHM
508 µg/L 635%
of the EPA limit, in the worst sample — 80 µg/L
 5/16 SYR4
Barium
425 µg/L 21%
of the EPA limit 2000 µg/L
 2/16 SYR4
Total Haloacetic Acids (HAA5)
253 µg/L 422%
of the EPA limit, in the worst sample — 60 µg/L
 3/16 SYR4
Monochloroacetic Acid
193 µg/L
No EPA limit set
 2/16 SYR4
Chloroform
86.9 µg/L
No EPA limit set
 5/16 SYR4
Trichloroacetic Acid
53.7 µg/L
No EPA limit set
 3/16 SYR4
Dichloroacetic Acid
53.6 µg/L
No EPA limit set
 3/16 SYR4
Lead
31 µg/L 207%
of the EPA limit, in the worst sample — 15 µg/L
 12/16 SYR4
Dibromochloromethane
23.7 µg/L
No EPA limit set
 2/16 SYR4
Combined Uranium
23.542 µg/L 78%
of the EPA limit 30 µg/L
 6/16 SYR4
Bromodichloromethane
23.5 µg/L
No EPA limit set
 2/16 SYR4
Xylenes, Total
13.8 µg/L 0.1%
of the EPA limit 10000 µg/L
 3/16 SYR4
Gross Beta Particle Activity
11.1 pCi/L
No EPA limit set
 7/16 SYR4
Dibromoacetic Acid
8 µg/L
No EPA limit set
 3/16 SYR4
Arsenic
7.32 µg/L 73%
of the EPA limit 10 µg/L
 1/16 SYR4
Bromoform
7.3 µg/L
No EPA limit set
 2/16 SYR4
Gross Alpha, Excl. Radon And U
5.9 pCi/L 39%
of the EPA limit 15 pCi/L
 2/16 SYR4
Toluene
5.8 µg/L 0.6%
of the EPA limit 1000 µg/L
 1/16 SYR4
Monobromoacetic Acid
5.56 µg/L
No EPA limit set
 2/16 SYR4
Ethylbenzene
2.5 µg/L 0.4%
of the EPA limit 700 µg/L
 2/16 SYR4
Combined Radium (-226 And -228)
1.8 pCi/L 36%
of the EPA limit 5 pCi/L
 6/16 SYR4
Di(2-ethylhexyl) Phthalate
1.8 µg/L 30%
of the EPA limit 6 µg/L
 1/16 SYR4
Thallium, Total
1.4 µg/L 70%
of the EPA limit 2 µg/L
 1/16 SYR4
Antimony, Total
1.3 µg/L 22%
of the EPA limit 6 µg/L
 1/16 SYR4
Dichloromethane
0.6600 µg/L 13%
of the EPA limit 5 µg/L
 1/16 SYR4
Chlordane
0.5920 µg/L 30%
of the EPA limit 2 µg/L
 1/16 SYR4
Asbestos
0.2000 MFL 2.9%
of the EPA limit 7 MFL
 1/16 SYR4
Heptachlor Epoxide
0.0674 µg/L 34%
of the EPA limit 0.2000 µg/L
 3/16 SYR4
Pfpea
0.0085 µg/L
No EPA limit set
 1/16 UCMR-5
Pfhxa
0.0082 µg/L
No EPA limit set
 1/16 UCMR-5
Pfba
0.0077 µg/L
No EPA limit set
 1/16 UCMR-5
Lead
0.0060 mg/L 40%
of the EPA limit 0.0150 mg/L
 16/16 LCR
PFOA
0.0044 µg/L
No EPA limit set
 1/16 UCMR-5
PFBS
0.0039 µg/L
No EPA limit set
 1/16 UCMR-5
Pfhpa
0.0031 µg/L
No EPA limit set
 1/16 UCMR-5
Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Dallas

SupplierPopulation served
DALLAS, TOWN OF 8,212
SPENCER MOUNTAIN VILLAGE 442
COLLEGE PARK SD 208
WINDSOR HEIGHTS MHP 178
CEDARWOOD ACRES 162
DONNA-LYNN MHP 149
HOYLE`S CREEK MHP 147
MCCONNELL S/D 124
GALLAGHER TRAILS S/D 109
WIMBLEDON S/D 107
FOREST HILL MHP 89
GLENNBURN S/D 73
HICKORY GROVE MHP 69
CEDAR VALLEY 66
KNOLLWOOD S/D 46
WINNINGFIELD S/D 30

Frequently asked questions about Dallas tap water

Is Dallas tap water safe to drink?

EPA testing detected 39 contaminants in the water serving Dallas. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Dallas?

16 public water suppliers report drinking-water monitoring for Dallas, North Carolina to the EPA. Each is listed above with its population served.

What contaminants are in Dallas's water?

The contaminants EPA monitoring detected in Dallas include Nitrate, Nitrate-Nitrite, Fluoride, Copper, TTHM. The full list, with the highest level found and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.